Finding the Fourth Proportional to 247,174.53, 341,087.72 and 139,738.15

Step by Step Solution

1. Step 1: Write the proportion equation
   247,174.53 : 341,087.72 = 139,738.15 : x
2. Step 2: Convert to fraction form
   247,174.53/341,087.72 = 139,738.15/x
3. Step 3: Cross multiply
   247,174.53x = 341,087.72 × 139,738.15
4. Step 4: Simplify right side
   247,174.53x = 47,662,966,980.52
5. Step 5: Solve for x
   x = 47,662,966,980.52/247,174.53
6. Step 6: Final answer
   x = 192,831.23